Genuine OEM Volkswagen Sliding Door Lower Roller Guide, part number 2K0843397B. This critical component facilitates the smooth and controlled opening and closing of the vehicle's sliding door, preventing binding or misalignment. It is specifically installed as the lower roller guide on the left-hand side sliding door. Constructed from durable black metal with integrated white plastic rollers, this guide weighs 1.032 kg and measures 0.24 meters in length. Choosing a genuine OEM roller guide ensures precise fitment, robust construction, and optimal roller bearing quality, which are essential for the long-term reliability and safe operation of the sliding door mechanism.